/* ==========================================================================
   Miguel Ujeda Gálvez — Personal Brand & EdTech Consultancy Stylesheet
   Design System: Warm Dark Mode, Glassmorphism, Premium Typography
   ========================================================================== */

:root {
  --bg-primary: #12100e;
  --bg-surface: #1a1614;
  --bg-card: rgba(255, 255, 255, 0.035);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-highlight: rgba(217, 162, 74, 0.3);
  
  --color-gold: #d9a24a;
  --color-gold-hover: #e8b661;
  --color-gold-glow: rgba(217, 162, 74, 0.15);
  --text-main: #f3f1ee;
  --text-muted: #a39e99;
  --text-dim: #706b66;
  
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 40px rgba(217, 162, 74, 0.12);
  
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main);
}

.text-gold {
  color: var(--color-gold);
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, var(--color-gold) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Header & Nav */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(18, 16, 14, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
  transition: var(--transition);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.logo-badge {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #2a231d, #14110f);
  border: 1px solid var(--border-highlight);
  display: grid;
  place-items: center;
  color: var(--color-gold);
  font-weight: 700;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Language Toggle */
.lang-toggle {
  display: flex;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  padding: 3px;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
}

.lang-btn.active {
  background: var(--color-gold);
  color: #14110f;
}

/* Multilingual Language Display Rules */
body[data-lang="es"] [data-lang-content="en"] {
  display: none !important;
}

body[data-lang="en"] [data-lang-content="es"] {
  display: none !important;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-gold), #c48c37);
  color: #14110f;
  box-shadow: 0 4px 20px rgba(217, 162, 74, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--color-gold-hover), var(--color-gold));
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(217, 162, 74, 0.35);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Mobile Menu Toggle */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-main);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Hero Section */
.hero {
  padding: 160px 0 100px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: var(--color-gold-glow);
  border: 1px solid var(--border-highlight);
  color: var(--color-gold);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 3.25rem;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  text-wrap: balance;
}

.hero-title .gradient-text {
  display: inline-block;
  white-space: nowrap;
}

.hero-description {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin-bottom: 36px;
  max-width: 620px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

/* Credentials Pills */
.credentials-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cred-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  padding: 8px 14px;
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--text-muted);
}

.cred-pill svg {
  color: var(--color-gold);
}

/* Hero Image Card */
.hero-image-wrapper {
  position: relative;
}

.hero-image-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-md);
  background: var(--bg-surface);
}

.hero-image-card img {
  width: 100%;
  height: 480px;
  object-fit: cover;
  object-position: center 20%;
  filter: brightness(0.95);
  transition: var(--transition);
}

.hero-image-card:hover img {
  transform: scale(1.03);
}

.hero-image-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  background: linear-gradient(to top, rgba(18, 16, 14, 0.95), transparent);
}

.hero-card-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.hero-card-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Section Header */
.section {
  padding: 100px 0;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
}

.section-tag {
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
  display: block;
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-highlight);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-gold-glow);
  border: 1px solid var(--border-highlight);
  display: grid;
  place-items: center;
  color: var(--color-gold);
  margin-bottom: 24px;
}

.service-title {
  font-size: 1.35rem;
  margin-bottom: 14px;
}

.service-text {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: center;
}

.about-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.about-title {
  font-size: 2rem;
  margin-bottom: 20px;
}

.about-text {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 24px;
}

.about-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.about-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-main);
}

.about-item svg {
  color: var(--color-gold);
  flex-shrink: 0;
  margin-top: 3px;
}

/* Evidence & Photo Gallery Grid */
.photo-gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.photo-card {
  position: relative;
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
}

.photo-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.photo-card:hover img {
  transform: scale(1.06);
}

.photo-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(14, 12, 10, 0.9), transparent 55%);
  display: flex;
  align-items: flex-end;
  padding: 16px;
}

.photo-caption {
  font-size: 0.85rem;
  font-style: italic;
  color: var(--text-main);
  line-height: 1.4;
}

/* Resources & Talks Grid */
.resources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.resource-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.resource-card:hover {
  border-color: var(--border-highlight);
  transform: translateY(-4px);
}

.resource-thumb {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: #1a1614;
}

.resource-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
  transition: var(--transition);
}

.resource-card:hover .resource-thumb img {
  transform: scale(1.05);
  opacity: 1;
}

.play-badge {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.play-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-gold);
  color: #14110f;
  display: grid;
  place-items: center;
  font-size: 1.1rem;
  padding-left: 3px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
  transition: var(--transition);
}

.resource-card:hover .play-icon {
  transform: scale(1.1);
  background: var(--color-gold-hover);
}

.resource-content {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-grow: 1;
}

.resource-type {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.resource-title {
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.4;
}

.evidence-tag {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-gold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
  display: block;
}

.evidence-title {
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.evidence-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* Contact Section */
.contact-wrapper {
  background: linear-gradient(135deg, #1c1815, #14110f);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 60px;
  box-shadow: var(--shadow-md);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info-title {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.contact-info-text {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 32px;
}

.contact-direct {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-direct-item {
  display: flex;
  align-items: center;
  gap: 16px;
}

.contact-icon {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-sm);
  background: var(--color-gold-glow);
  border: 1px solid var(--border-highlight);
  display: grid;
  place-items: center;
  color: var(--color-gold);
}

/* Form Styles */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-main);
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  color: var(--text-main);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: var(--transition);
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  outline: none;
  border-color: var(--color-gold);
  background: rgba(255, 255, 255, 0.07);
  box-shadow: 0 0 0 3px rgba(217, 162, 74, 0.15);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.captcha-box {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  background: rgba(255, 255, 255, 0.02);
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
}

.captcha-question {
  font-weight: 600;
  font-size: 0.9rem;
}

.captcha-input {
  width: 70px;
  padding: 6px 10px;
  text-align: center;
}

/* Footer */
.footer {
  padding: 60px 0 30px;
  border-top: 1px solid var(--border-color);
  background: #0d0c0a;
}

.footer-wrapper {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 40px;
}

.footer-copy {
  font-size: 0.9rem;
  color: var(--text-dim);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.footer-link {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-link:hover {
  color: var(--color-gold);
}

/* Multilingual Toggle Visibility */
[data-lang-content] {
  display: none;
}

body[data-lang="es"] [data-lang-content="es"] {
  display: block;
}

body[data-lang="es"] span[data-lang-content="es"],
body[data-lang="es"] a[data-lang-content="es"] {
  display: inline-block;
}

body[data-lang="en"] [data-lang-content="en"] {
  display: block;
}

body[data-lang="en"] span[data-lang-content="en"],
body[data-lang="en"] a[data-lang-content="en"] {
  display: inline-block;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  .hero-grid, .about-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .services-grid, .evidence-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .hero-title {
    font-size: 2.5rem;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 73px;
    left: 0;
    width: 100%;
    background: #14110f;
    flex-direction: column;
    padding: 30px;
    border-bottom: 1px solid var(--border-color);
    clip-path: circle(0% at 100% 0);
    transition: clip-path 0.4s ease-in-out;
  }
  
  .nav-menu.active {
    clip-path: circle(150% at 100% 0);
  }
}

@media (max-width: 640px) {
  .services-grid, .evidence-grid {
    grid-template-columns: 1fr;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .contact-wrapper {
    padding: 30px 20px;
  }
  
  .footer-wrapper {
    flex-direction: column;
    align-items: flex-start;
  }
}